A method for the extraction of residual formaldehyde from surgical materials after sterilisation and its gas chromatographic determination as the 2,4-dinitrophenylhydrazone derivative is described. Quantitative determinations are made using 9-cyanoanthracene as an internal standard, instead of anthracene, as reported previously, because this compound is more stable in solution. The sensitivity is of the order of 10 ng ml-1 of extracted aldehyde. To measure the released formaldehyde under the conditions closest to those of the human body, because of the purpose of these samples, the formaldehyde was also extracted with a physiological solution (0.9% NaCI), at 37 "C, with and without stirring.
Extraction and Gas-Chromatographic Determination of Residual Formaldehyde in Microsurgical Materials.
PROFUMO, ANTONELLA;PESAVENTO, MARIA
1986-01-01
Abstract
A method for the extraction of residual formaldehyde from surgical materials after sterilisation and its gas chromatographic determination as the 2,4-dinitrophenylhydrazone derivative is described. Quantitative determinations are made using 9-cyanoanthracene as an internal standard, instead of anthracene, as reported previously, because this compound is more stable in solution. The sensitivity is of the order of 10 ng ml-1 of extracted aldehyde. To measure the released formaldehyde under the conditions closest to those of the human body, because of the purpose of these samples, the formaldehyde was also extracted with a physiological solution (0.9% NaCI), at 37 "C, with and without stirring.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
